Hi, This series converts Loongson PCI into a generic PCI controller driver and adds support for LS2K SoC and LS7A PCH's PCI support. Is it possible to let patch 1~3 go through PCI tree and patch 4~5 go through MIPS tree? Thanks. v6: Drop first the patch of previous versions. Driver code clean-ups according to rob's suggestion. It looks like I had a wrong impression on generic IO port handeling and now the issue has been fixed, I implemented PCI_IOBASE for MIPS[1]. Now the address is uniform here. [1]: https://patchwork.kernel.org/cover/11510499/ v7: Fix some minor issues. Jiaxun Yang (5): PCI: Don't disable decoding when mmio_always_on is set PCI: Add Loongson PCI Controller support dt-bindings: Document Loongson PCI Host Controller MIPS: DTS: Loongson64: Add PCI Controller Node MIPS: Loongson64: Switch to generic PCI driver .../devicetree/bindings/pci/loongson.yaml | 62 +++++ arch/mips/Kconfig | 1 + arch/mips/boot/dts/loongson/rs780e-pch.dtsi | 12 + arch/mips/loongson64/Makefile | 2 +- arch/mips/loongson64/vbios_quirk.c | 29 ++ arch/mips/pci/Makefile | 1 - arch/mips/pci/fixup-loongson3.c | 71 ----- arch/mips/pci/ops-loongson3.c | 116 -------- drivers/pci/controller/Kconfig | 10 + drivers/pci/controller/Makefile | 1 + drivers/pci/controller/pci-loongson.c | 251 ++++++++++++++++++ drivers/pci/probe.c | 2 +- 12 files changed, 368 insertions(+), 190 deletions(-) create mode 100644 Documentation/devicetree/bindings/pci/loongson.yaml create mode 100644 arch/mips/loongson64/vbios_quirk.c delete mode 100644 arch/mips/pci/fixup-loongson3.c delete mode 100644 arch/mips/pci/ops-loongson3.c create mode 100644 drivers/pci/controller/pci-loongson.c -- 2.26.0.rc2